Photo by Thomas Boyd/The OregonianHere's a roundup of the morning's news from The Oregonian's business
desk:

Stocks: World stock
markets fell Friday despite strong U.S. economic growth data as investors warily
awaited the completion of a support package to keep Greece from defaulting on
its debts.

Wine: Wineries in Oregon and across the country this week are launching a
counteroffensive against proposed federal legislation they say could
slam the door on their ability to ship wines across state lines.

Real estate: The looming expiration of the wildly popular homebuyers' tax credithas transformed late April into a hectic marathon of
last-ditch dealmaking.

Clean tech: Swiss battery maker ReVolt Technology has received a $5 million U.S. government grant that will
help the company launch a planned Portland manufacturing and research
center.

Panhandling: Portland city commissioners Thursday put off a controversial vote on
proposed sidewalk restrictions after questions about the right to
assemble indicated the council was not ready to vote.

Agriculture: West Coast researchers who are battling a destructive new fruit fly got
some help this week, as the U.S. Department of Agriculture recommended a
$5.8 million grant that will fund the effort for the next
four-and-a-half years.

Campaign funding: Moving to blunt what they called "one of the worst decisions'' in
Supreme Court history, Sen. Ron Wyden
and three Democratic allies offered legislation Thursday that would
require corporate CEOs, labor leaders and directors of special interests
to appear in – and take credit for – any political ad they finance.

Bill Gates: Microsoft's co-founder has invested $10 million in a Portland company called Schrödinger, which makes software for the drug industry.

Tektronix: The Washington County company has acquired SyntheSys Research, which makes a tool for measuring the quality of
electrical signals.

Earnings: Beaverton-based Digimarc Corp. said this morning that its first-quarter sales totaled
$10.2 million, up from $4.4 million in the first three months last year.

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